<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <form action="http://127.0.0.1:5000/boku/retGoodsByExcel" method="POST" enctype="multipart/form-data">
    <input type="file" name="file">
    <button type="submit">上传</button>
  </form>

</body>
</html>